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Formula: CAB
Form: Granule
Material: Cellulose acetate butyrate (CAB)
CAS Number: 9004-36-8
Commodity: Polymers
Nominal Granule Size:
3mm
Additives:
10% Plasticiser content by weight
Color:
Natural
Cellulose Acetate Butyrate Granules are made from a thermoplastic polymer that offers high-impact strength and good processability. They’re available in 17 variations with a choice of different molecular weights, colors and viscosity grades. With their range of properties, Cellulose Acetate Butyrate Granules have diverse applications across many industries. These include being used for the injection molding of consumer goods like tool handles, spectacle frames and combs. They’re also used in automotive parts and food packaging due to their toughness, rigidity and good thermal stability.
Material Properties for Polymers
Physical Properties
| Element | Value |
|---|---|
| Abbe number | 80-84 |
| Flammability | HB |
| Radiation resistance | Fair |
| Refractive index | 1.478 |
| Resistance to Ultra-violet | Good |
| Limiting oxygen index( % ) | 17 |
| Water absorption - over 24 hours( % ) | 0.9-2.2 |
| Density( gcm⁻³ ) | 1.2 |
Chemical Resistance
| Element | Value |
|---|---|
| Acids - dilute | Fair-Poor |
| Alcohols | Poor |
| Alkalis | Fair-Poor |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good-Poor |
| Halogenated Hydrocarbons | Poor |
| Halogens | Poor |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.5-6.2 |
| Dissipation factor @ 1kHz | 0.04 |
| Dielectric strength( kV mm⁻¹ ) | 10 |
| Volume resistivity( Ohmcm ) | 10¹¹-10¹⁵ |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | 99 |
| Elongation at break( % ) | 60 |
| Tensile modulus( GPa ) | 0.3-2 |
| Izod impact strength( J m⁻¹ ) | 260 |
| Tensile strength( MPa ) | 20-60 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 73 |
| Heat-deflection temperature - 1.8MPa( C ) | 62 |
| Lower working temperature( C ) | <-40 |
| Upper working temperature( C ) | 60-100 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.16-0.32@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 140 |
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PHB/PHV 1% Powder
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PHB Film Formula: PHB
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PHB/PHV 8% Film Formula: PHB92/PHV 8
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